Adolfo Reyna
65 lines
2.2 KiB
JavaScript
65 lines
2.2 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.visualizeAudio = void 0;
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const no_react_1 = require("remotion/no-react");
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const get_visualization_1 = require("./fft/get-visualization");
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const max_value_cached_1 = require("./fft/max-value-cached");
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const cache = {};
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/**
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* @description Takes in AudioData (preferably fetched by the useAudioData() hook) and processes it in a way that makes visualizing the audio that is playing at the current frame easy.
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* @description part of @remotion/media-utils
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* @see [Documentation](https://www.remotion.dev/docs/visualize-audio)
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*/
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const visualizeAudioFrame = ({ audioData, frame, fps, numberOfSamples, optimizeFor, dataOffsetInSeconds, }) => {
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const cacheKey = audioData.resultId + frame + fps + numberOfSamples;
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if (cache[cacheKey]) {
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return cache[cacheKey];
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}
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const maxInt = (0, max_value_cached_1.getMaxPossibleMagnitude)(audioData);
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return (0, get_visualization_1.getVisualization)({
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sampleSize: numberOfSamples * 2,
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data: audioData.channelWaveforms[0],
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frame,
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fps,
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sampleRate: audioData.sampleRate,
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maxInt,
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optimizeFor,
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dataOffsetInSeconds,
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});
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};
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const visualizeAudio = ({ smoothing = true, optimizeFor = no_react_1.NoReactInternals.ENABLE_V5_BREAKING_CHANGES
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? 'speed'
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: 'accuracy', dataOffsetInSeconds = 0, ...parameters }) => {
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if (!smoothing) {
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return visualizeAudioFrame({
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...parameters,
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optimizeFor,
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dataOffsetInSeconds,
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smoothing,
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});
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}
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const toSmooth = [
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parameters.frame - 1,
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parameters.frame,
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parameters.frame + 1,
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];
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const all = toSmooth.map((s) => {
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return visualizeAudioFrame({
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...parameters,
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frame: s,
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dataOffsetInSeconds,
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optimizeFor,
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smoothing,
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});
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});
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return new Array(parameters.numberOfSamples).fill(true).map((_x, i) => {
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return (new Array(toSmooth.length)
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.fill(true)
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.map((_, j) => {
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return all[j][i];
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})
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.reduce((a, b) => a + b, 0) / toSmooth.length);
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});
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};
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exports.visualizeAudio = visualizeAudio;
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